Reply With QuoteIve made a thread on PF and hes on there a bit. If he wants to reply he will.
Ive had a look around Race forums but wont bother posting on there unless I get stuck. About to go home and just give it a go.
Re: Hot wire foam cutter
you could try emailing Neil Rosher - but the poor guy is usually inundated with emails and work.
Re: Hot wire foam cutter
Ive made a thread on PF and hes on there a bit. If he wants to reply he will.
Ive had a look around Race forums but wont bother posting on there unless I get stuck. About to go home and just give it a go.
I used to eat alot of natural foods. That was until I learned that most people died of natural causes.
Re: Hot wire foam cutter
on p58 of issue 15, there's a pic of the bow used to cut the foam for the door they fill with a fibre-glass-covered form insert. Bow looks about a metre long. They used a power supply rated to 30V @ 2.5 amps. However, the text says they started at 12v and raised the current & voltage til it cut cleanly. Note that they used 10amp cable between the power supply & cutting bow.
Re: Hot wire foam cutter
Yeah in the article about making spoilers he cuts a very wide piece out...Im guessing he would have needed a good 1500mm wide bow then....I wish I still had my frikin magazine.
Currently working on this. Fingers crossed it all works out!
I used to eat alot of natural foods. That was until I learned that most people died of natural causes.
Re: Hot wire foam cutter
Well turns out that roughly 400mm seems to work well hooked straight up to the battery. Off to buy some foam now, will take some pics.
I used to eat alot of natural foods. That was until I learned that most people died of natural causes.
Re: Hot wire foam cutter
hey mate, yeah was about to say my mates dad does this for EPP flying wings and just striaght to a 12v battery, nichrome wire is very conductive and has a great heat range so it wont cook itself too easily, just dont leave it on too long and check your battery temp.
Re: Hot wire foam cutter
Heres a pic of the the cutter I ended up making. Its very simple and far from perfect but it did the job fine.
The problems were:
The ratchet strap for tension adjustment was no good, need finer tuning. I broke the wire a few times as the difference between a loose wire and a tight wire was often less than 1 click of the ratchet.
The steel frame (previous a stand for my fish tank light) bent too much. Ill make something specifically for a foam cutter another time.
Battery as a power supply was ok for small stuff but if I want to be able to cut something wider than 500mm (spoiler/etc) I'll need something else.
Thanks for the advice, +rep for everyone in this thread.
I used to eat alot of natural foods. That was until I learned that most people died of natural causes.
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